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FILE - This Jan. 16, 2013 file photo shows, from left: Hinna Zeejah, 8, Taejah Goode, 10, Julia Stokes, 11, and Grant Fritz, 8, who wrote letters to President Barack Obama about the school shooting in Newtown, Conn., watch as the president jokes about being left handed as he signs executive orders outlining proposals to reduce gun violence, in the South Court Auditorium at the White House in Washington. Presidential terms are measured by sweeping laws and stirring events, but legacies are about enduring ideas. The one Barack Obama has in mind will drive most everything he tries to do in the next four years: assuring that America is a place where anyone can make it. (AP Photo/Charles Dharapak, File)

FILE - This Jan. 16, 2013 file photo shows, from left: Hinna Zeejah, 8, Taejah Goode, 10, Julia Stokes, 11, and Grant Fritz, 8, who wrote letters to President Barack Obama about the school shooting in Newtown, Conn., watch as the president jokes about being left handed as he signs executive orders outlining proposals to reduce gun violence, in the South Court Auditorium at the White House in Washington. Presidential terms are measured by sweeping laws and stirring events, but legacies are about enduring ideas. The one Barack Obama has in mind will drive most everything he tries to do in the next four years: assuring that America is a place where anyone can make it. (AP Photo/Charles Dharapak, File)